But it seems not all is well with Robert Pattinson and Kristen Stewart, judging by photographs of the Twilight star leaving a bar in Los Feliz last night with Disturbia actress Sarah Roemer.

The 25-year-old actor attempted to keep his head down as he left the bar and made his way home in a car inside which Roemer was already waiting.Keeping his head down: Pattinson and Roemer left the bar in the same car together

It's claimed that Pattinson and Roemer had spent the evening with friends in the bar, before the group made their way to Soho House in West Hollywood.

The pair are then alleged to have left Soho House together in a car driven by Roemer.

The pictures of Pattinson and Roemer are likely to call his relationship with fellow Twilight star Stewart into doubt.

Scruffy: Pattinson wore a checked shirt and jeans for his night out

Stewart confirmed earlier this year that she and Pattinson were dating, following rumours of a relationship stemming back to 2008, when the pair first began starring together in the Twilight film series.

In an interview with GQ magazine, Stewart said she will never speak openly about her relationship, explaining: 'I don’t worry about it at all. It’s just one of those things. I’m selfish. I’m like, "That’s mine!" And I like to keep whatever is mine remaining that way.

'It’s a funny little game to play and it’s a slippery slope. I always say to myself I’m never going to give anything away because there’s never any point or benefit for me.'

Loved up: Pattinson with girlfriend Kristen Stewart last month

Pattinson and Stewart have been photographed together in recent months while promoting their most recent movie Breaking Dawn: Part I.

However, the pictures of Pattinson, who looked scruffy in a checked shirt, leaving the bar with Roemer are unlikely to impress his girlfriend.

And Roemer wasn't the only female Pattinson attracted during his evening out.

An onlooker told X17Online.com: 'Rob was literally fending off advances from girls, left and right.

'Every female in the bar wanted to get close to him and for the most part, he politely ignored them but one girl caught his eye and she left with him!'

Roemer is most famous for starring opposite Shia LaBeouf in 2007 thriller Disturbia.

She has since appeared in US TV show The Event, as well as the new series of Hawaii Five-0.